{"id":4724,"date":"2016-05-18T09:49:00","date_gmt":"2016-05-18T04:19:00","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/ncert-solutions-class-8-science-05-coal-and-petroleum\/"},"modified":"2018-06-25T10:19:46","modified_gmt":"2018-06-25T04:49:46","slug":"ncert-solutions-for-class-8-science-coal-and-petroleum","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/","title":{"rendered":"NCERT Solutions for Class 8 Science Coal and Petroleum"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#NCERT_Class_8_Science_Chapter_wise_Solutions\" >NCERT Class 8 Science Chapter wise Solutions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#NCERT_Solutions_for_Class_8_Science_Coal_and_Petroleum\" >NCERT Solutions for Class 8 Science Coal and Petroleum<\/a><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#Class%E2%80%93VIII_Science_NCERT_SOLUTION\" >Class\u2013VIII Science NCERT SOLUTION<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#Ch-5_Coal_and_Petroleum\" >Ch-5 Coal and Petroleum<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#1_What_are_the_advantages_of_using_CNG_and_LPG_as_fuels\" >1. What are the advantages of using CNG and LPG as fuels?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#3_Describe_how_coal_is_formed_from_dead_vegetation_What_is_this_process_called\" >3. Describe how coal is formed from dead vegetation. What is this process called?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#4_Fill_in_the_blanks\" >4. Fill in the blanks.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#5_Tick_trueFalse_against_the_following_statements\" >5. Tick true\/False against the following statements.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#6_Explain_why_fossil_fuels_are_exhaustible_natural_resources\" >6. Explain why fossil fuels are exhaustible natural resources.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#7_Describe_characteristics_and_uses_of_coke\" >7. Describe characteristics and uses of coke.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#8_Explain_the_process_of_formation_of_petroleum\" >8. Explain the process of formation of petroleum.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#9_The_following_table_shows_the_total_power_shortage_in_India_from_1991-1997_Show_the_data_in_the_form_of_a_graph_Plot_shortage_percentage_for_the_years_on_the_Y-axis_and_the_year_on_the_X-axis\" >9. The following table shows the total power shortage in India from 1991-1997. Show the data in the form of a graph. Plot shortage percentage for the years on the Y-axis and the year on the X-axis.<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#NCERT_solutions_for_Class_8_Science\" >NCERT solutions for Class 8 Science<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/#CBSE_app_for_Students\" >CBSE app for Students<\/a><\/li><\/ul><\/nav><\/div>\n<p>NCERT Solutions for Class 8 Science Coal and Petroleum Class 8 Science book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 8 Science chapter wise NCERT solution for Class 8 Science all the chapters can be downloaded from our website and myCBSEguide mobile app for free.q<\/p>\n<p style=\"text-align: center;\"><strong>NCERT solutions for Science\u00a0Coal and Petroleum <a class=\"button\" href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-08-science\/1466\/ncert-solutions\/5\/\">Download as PDF<\/a><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/media-mycbseguide.s3.ap-south-1.amazonaws.com\/images\/blog\/08_Science_Book.jpg\" alt=\"NCERT Solutions for Class 8 Science Coal and Petroleum\" width=\"169\" height=\"209\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Class_8_Science_Chapter_wise_Solutions\"><\/span>NCERT Class 8 Science Chapter wise Solutions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>1 \u2013 Crop Production and Management<\/li>\n<li>2 \u2013 Microorganisms : Friend and Foe<\/li>\n<li>3 \u2013 Synthetic Fibres and Plastics<\/li>\n<li>4 \u2013 Materials : Metals and Non-Metals<\/li>\n<li>5 \u2013 Coal and Petroleum<\/li>\n<li>6 \u2013 Combustion and Flame<\/li>\n<li>7 \u2013 Conservation of Plants and Animals<\/li>\n<li>8 \u2013 Cell \u2013 Structure and Functions<\/li>\n<li>9 \u2013 Reproduction in Animals<\/li>\n<li>10 \u2013 Reaching The Age of Adolescence<\/li>\n<li>11 \u2013 Force and Pressure<\/li>\n<li>12 \u2013 Friction<\/li>\n<li>13 \u2013 Sound<\/li>\n<li>14 \u2013 Chemical Effects of Electric Current<\/li>\n<li>15 \u2013 Some Natural Phenomena<\/li>\n<li>16 \u2013 Light<\/li>\n<li>17 \u2013 Stars and The Solar System<\/li>\n<li>18 \u2013 Pollution of Air and Water<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_8_Science_Coal_and_Petroleum\"><\/span>NCERT Solutions for Class 8 Science Coal and Petroleum<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h6 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"Class%E2%80%93VIII_Science_NCERT_SOLUTION\"><\/span><strong>Class\u2013VIII Science NCERT SOLUTION<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<div>\n<h6 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"Ch-5_Coal_and_Petroleum\"><\/span><strong>Ch-5 Coal and Petroleum<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<h6><span class=\"ez-toc-section\" id=\"1_What_are_the_advantages_of_using_CNG_and_LPG_as_fuels\"><\/span><strong>1. What are the advantages of using CNG and LPG as fuels? <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>The advantage of using CNG and LPG are as follows:<\/p>\n<p><strong>a.<\/strong> These are cleaner fuels.<\/p>\n<p><strong>b.<\/strong> These are low cost fuels.<\/p>\n<p><strong>c.<\/strong> These are available easily.<\/p>\n<p><strong>d.<\/strong> These can be supplied through pipes.<\/p>\n<hr \/>\n<p><strong>2. Name the petroleum product used for surfacing of roads. <\/strong><\/p>\n<p><strong>Ans. <\/strong>These days bitumen, a petroleum product is used for surfacing the roads in place of coal tar.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Science Coal and Petroleum<\/p>\n<h6><span class=\"ez-toc-section\" id=\"3_Describe_how_coal_is_formed_from_dead_vegetation_What_is_this_process_called\"><\/span><strong>3. Describe how coal is formed from dead vegetation. What is this process called?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Million years ago, earth was having dense forests in low lying wet land areas. Due to earthquakes and volcanic eruptions, these forests got buried under the soil. As more soil deposited over them, they were compressed. The temperature also raised as they sank deeper and deeper. Due to high temperature and lack of oxygen dead plants inside the earth got slowly converted to coal. This process of coal formation is called carbonization.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Science Coal and Petroleum<\/p>\n<h6><span class=\"ez-toc-section\" id=\"4_Fill_in_the_blanks\"><\/span><strong>4. Fill in the blanks. <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(a) Fossil fuels are ________, ______________, and ________________.<\/strong><\/p>\n<p><strong>(b) Process of separation of different constituents from petroleum is called______.<\/strong><\/p>\n<p><strong>(c) Least polluting fuel for vehicle is ________________.<\/strong><\/p>\n<p><strong>Ans. <\/strong><\/p>\n<p><strong>(a)<\/strong> Coal, Petroleum and Natural gas.<\/p>\n<p><strong>(b)<\/strong> Refining<\/p>\n<p><strong>(c)<\/strong> CNG<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Science Coal and Petroleum<\/p>\n<h6><span class=\"ez-toc-section\" id=\"5_Tick_trueFalse_against_the_following_statements\"><\/span><strong>5. Tick true\/False against the following statements.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(a) Fossils fuels can be made in laboratory.\u00a0\u00a0 (T\/F)<\/strong><\/p>\n<p><strong>(b) CNG is more polluting fuel than petrol.\u00a0\u00a0\u00a0 (T\/F)<\/strong><\/p>\n<p><strong>(c) Coke is almost pure form of carbon.\u00a0\u00a0\u00a0 (T\/F)<\/strong><\/p>\n<p><strong>(d) Coal tar is a mixture of various substances.\u00a0\u00a0 (T\/F)<\/strong><\/p>\n<p><strong>(e) Kerosene is not a fossil fuel.\u00a0\u00a0\u00a0\u00a0 (T\/F)<\/strong><\/p>\n<p><strong>Ans. <\/strong>Tick True\/false.<\/p>\n<p><strong>(a)<\/strong> F<\/p>\n<p><strong>(b)<\/strong> F<\/p>\n<p><strong>(c)<\/strong> T<\/p>\n<p><strong>(d)<\/strong> T<\/p>\n<p><strong>(e)<\/strong> F<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Science Coal and Petroleum<\/p>\n<h6><span class=\"ez-toc-section\" id=\"6_Explain_why_fossil_fuels_are_exhaustible_natural_resources\"><\/span><strong>6. Explain why fossil fuels are exhaustible natural resources.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Fossils fuels are present in nature in limited quantity and are being exhausted abundantly by us. That is why fossil fuels are called exhaustible natural resources.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Science Coal and Petroleum<\/p>\n<h6><span class=\"ez-toc-section\" id=\"7_Describe_characteristics_and_uses_of_coke\"><\/span><strong>7. Describe characteristics and uses of coke.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Coke is a tough porous black substance. It is almost pure form of carbon. It is used in the manufacture of steel and in the extraction of many metals.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Science Coal and Petroleum<\/p>\n<h6><span class=\"ez-toc-section\" id=\"8_Explain_the_process_of_formation_of_petroleum\"><\/span><strong>8. Explain the process of formation of petroleum.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Petroleum is formed from organism living in the sea. When these organism died, their bodies settled at the bottom of the sea and got covered with layers of the sand and clay. Over millions of years, they were transformed into petroleum oil and natural gas under the absence of air and presence of high temperature and high pressure.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Science Coal and Petroleum<\/p>\n<h6><span class=\"ez-toc-section\" id=\"9_The_following_table_shows_the_total_power_shortage_in_India_from_1991-1997_Show_the_data_in_the_form_of_a_graph_Plot_shortage_percentage_for_the_years_on_the_Y-axis_and_the_year_on_the_X-axis\"><\/span><strong>9. The following table shows the total power shortage in India from 1991-1997. Show the data in the form of a graph. Plot shortage percentage for the years on the Y-axis and the year on the X-axis.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><img decoding=\"async\" style=\"height: 308px; width: 258px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/science\/ch05\/image001.png\" \/><\/p>\n<p><strong>Ans. <\/strong><\/p>\n<p><strong><img decoding=\"async\" id=\"Picture 1\" style=\"height: 203px; width: 276px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/science\/ch05\/image002.png\" \/><\/strong><\/p>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_solutions_for_Class_8_Science\"><\/span>NCERT solutions for Class 8 Science<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>NCERT Solutions Class 8 Science PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 8 Science includes text book solutions from Class 8 Science Book . NCERT Solutions for CBSE Class 8 Science have total 18 chapters. 8 Science NCERT Solutions in PDF for free Download on our website. Ncert Social Science class 8 solutions PDF and Science ncert class 8 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_app_for_Students\"><\/span>CBSE app for Students<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To download\u00a0NCERT Solutions for class 8 Social Science, Computer Science, Home Science,Hindi ,English, Maths Science do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through\u00a0<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\"><strong>the best app for CBSE students<\/strong><\/a>\u00a0and myCBSEguide website.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions for Class 8 Science Coal and Petroleum Class 8 Science book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class &#8230; <a title=\"NCERT Solutions for Class 8 Science Coal and Petroleum\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-coal-and-petroleum\/\" aria-label=\"More on NCERT Solutions for Class 8 Science Coal and Petroleum\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":-1,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[281,1383],"tags":[283,1523,216,349],"class_list":["post-4724","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ncert-solutions","category-science-cbse-class-08","tag-cbse-study-material","tag-class-8","tag-ncert-solutions","tag-science"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCERT Solutions for Class 8 Science Coal and Petroleum<\/title>\n<meta name=\"description\" content=\"NCERT Solutions for Class 8 Science Coal and Petroleum in PDF format for free download. 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